Cisco, CCDP資格,300-320試験対策書,300-320試験概要,300-320受験記対策

300-320試験に合格しました。下記は300-320試験対策書の問題を分かち合う。

Which route summarization most efficiently reduces perceived network complexity that is composed of subnetworks ranging from 172.16.20.0/24 to 172.16.36.0/24? 
A. 172.16.8.0/21 
B. 172.16.8.0/19 
C. 172.16.20.0/20 
D. 172.16.0.0/18 
E. 172.16.20.0/19 
Answer: D


What is the recommended subnet between two sites that have a point-to-point connection to conserve IP addresses? 
A. 255.255.255.0 
B. 255.255.252.0 
C. 255.255.255.252 
D. 255.255.255.240 
Answer: C


In which OSI layer does IS-IS operate? 
A. Layer 1 
B. Layer 2 
C. Layer 3 
D. Layer 4 
Answer: C


Which algorithm does IS-IS use to determine the shortest path through a network? 
A. Bellman-Ford routing algorithm 
B. Johnson’s algorithm 
C. Dijkstra’s algorithm 
D. Floyd-Warshall algorithm 
Answer: C


Which unique EIGRP feature allows for faster Layer 3 convergence? 
A. fast EIGRP timers 
B. feasible successors 
C. hybrid routing protocol
D. Cisco proprietary protocol 
Answer: B


EIGRP uses which algorithm to build a routing table? 
A. Dijkstra’s algorithm 
B. Floyd-Warshall algorithm 
C. Diffusing Update Algorithm 
D. Johnson’s algorithm 
Answer: C


What is the maximum number of routers that each OSPF area (including the backbone) should contain? 
A. 30 
B. 10 
C. 50 
D. 100 
Answer: C


What is the maximum number of neighbors that a router should have in an OSPF area? 
A. 5 
B. 30 
C. 60 
D. 99 
Answer: C


Refer to the exhibit. Based on the configuration, why are routers R1 and R2 not exchanging OSPF routes? 
A. The OSPF process numbers are different. 
B. There is no backbone area configured. 
C. The router IDs are different. 
D. OSPF is not enabled on the interfaces. 
Answer: B


An engineer notices that many BGP peers utilize the same configuration parameters. What can the engineer configure to simplify BGP neighbor statements and generate more efficient BGP peer updates? 
A. peer groups 
B. policy templates 
C. session templates 
D. peer address families 
Answer: A


What is the maximum number of routers that each OSPF area (including the backbone) should contain? 
A. 30 
B. 10 
C. 50 
D. 60 
Answer: C


What is the maximum number of neighbors that a router should have in an OSPF area? 
A. 5 
B. 30 
C. 50 
D. 60 
Answer: D


Which technology allows multiple instances of a routing table to coexist on the same router simultaneously? 
A. VRF 
B. Cisco virtual router 
C. Instanced virtuer router 
D. IS-IS 
Answer: A


Which first-hop redundancy protocol that was designed by Cisco allows packet load sharing among groups of redundant routers? 
A. GLBP 
B. HSRP 
C. VRRP 
D. VSS 
Answer: A


Which routing protocol provides the fastest convergence and greatest flexibility within a campus environment? 
A. OSPF 
B. IS-IS 
C. BGP 
D. EIGRP 
Answer: D


A network manager wants to securely connect a new remote site to the existing headquarters site using a VPN technology that meets security requirements. 
Which VPN technology should be used? 
A. GRE 
B. IPsec 
C. remote-access VPN 
D. L2TP VPN 
Answer: B


Which type of connectivity is required for VPLS? 
A. Full mesh 
B. Partial mesh 
C. Star 
D. Bus 
E. Ring 
Answer: A


Which protocol should be run on the LAN side of two edge routers (that are terminating primary and backup WAN circuits) to provide quick failover in case of primary WAN circuit failure? 
A. VTP 
B. STP 
C. VRRP 
D. RIP 
Answer: C


Which protocol is best when there are circuit connections with two different ISPs in a multihoming scenario ? 
A. VRRP 
B. BGP 
C. IPsec 
D. SSL 
Answer: B


Private lines make use of which connection type based on cell switching? 
A. ATM 
B. ISP MPLS VPN 
C. VTI 
D. VPLS 
Answer: A


Which technology fulfills these requirements? 
• Utilize a connection that must support a range of traffic, voice, video, and data. 
• This traffic must also support transmission via a fixed blank 53-byte cell. 
A. PPP 
B. Frame Relay 
C. ATM 
D. MPLS 
E. X.25 
Answer: C


Which option is used as a top-of-rack device that is managed by its parent device, providing ease of management? 
A. Cisco Nexus 2000 
B. Cisco Nexus 5000 
C. Cisco Nexus 7000 
D. Cisco Nexus 9000 
Answer: A


Which option provides software modularity in Cisco NX-OS software in the data center design? 
A. The ip routing command enables all of the features in the Cisco NX-OS. 
B. All of the features are enabled by default in the Cisco NX-OS. 
C. Individual features must be manually enabled to start the process. 
D. The Cisco NX-OS has a management VRF that is enabled by default. 
Answer: C


A network administrator wants to provide high availability in a data center environment by making sure that there is no reconvergence of Layer 2 and Layer 3 protocols when there is a Layer 3 switch failure. 
Which Cisco Nexus feature fulfills this purpose? 
A. ISSU 
B. VSS 
C. vPC 
D. MEC 
Answer: C


Which virtualization technology allows for HSRP protocol to be used in the active/active configuration where both HSRP Layer 3 devices can forward network traffic? 
A. OTV 
B. VSS 
C. vPC 
D. VDC 
Answer: C


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